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JPL Small-Body Database Browser
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58644 (1997 WU31)
Classification: Main-belt Asteroid          SPK-ID: 2058644
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2007169448225113 3.9999e-08  
a 2.584553320024838 1.1396e-08 au
q 2.065789673898574 1.0055e-07 au
i 3.200250256581865 3.7193e-06 deg
node 236.1684554096392 0.00010593 deg
peri 207.0217202979975 0.00010685 deg
M 38.99793934818105 1.4918e-05 deg
tp 2458436.094693957560
(2018-Nov-13.59469396)
6.2433e-05 TDB
period 1517.667629739488
4.16
1.0038e-05
2.748e-08
d
yr
n .2372060871205345 1.5688e-09 deg/d
Q 3.103316966151101 1.3683e-08 au
  Orbit Determination Parameters
   # obs. used (total)      717  
   data-arc span      7742 days (21.20 yr)  
   first obs. used      1997-11-29  
   last obs. used      2019-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60371  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:35:39  

Additional Information
 Earth MOID = 1.0823 au 
 Jupiter MOID = 2.14042 au 
 T_jup = 3.392 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO468486  

58644 (1997 WU31)          Discovered 1997-Nov-29 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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